Jet condensing apparatus.



F. RAY.

JET CONDENSING APPARATUS.

APPLICATION FILED APR.29. 1912.

1,160,652. Patented. Nov. 16, 1915.

/m 2 SHEETS- SHEET l.

F. RAY.

JET GONDENSING APPARATUS.

APPLICATION FILED APR.29. m2.

Ll, Patented Nov. 16, 1915.

2 SHEETS-SHEET 2.

(A. www@ FREDERICK RAY, OF SHORT HILLS, JERSEY, ASSIGNOR TO ALBERGER PUMP AND CONDNSER COMPANY, OF `NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Y JET CONDENSING APPARATUS.

Specification of Letters Patent.

Patented Nov. ie, rois.

Application led April 29, 1912. Serial No; 693,970.

To all whom t may concern.'

Be it known that I, FREDERICK RAY, a citizen of the United States, residing at Short Hills, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in J et Condensing Apparatus, of which the following is a specification, reference being had therein to the accompanying drawing.`

My invention relates toa jet condensing apparatus of the type having a centrifugal removal pump, and contains numerous novel features of construction and combination, particularly a condensing chamber of spiral form, whereby the steam condensed flows through a passage of gradually decreasing Y crosssection until the non condensable more efficient and economical thev construction of centrifugal jet condensers, and to adapt the same for use in many places where the ordinary jet condensing apparatus has not been found as efficient as could be desired.

The invention comprises not only a spiral condensing chamber, but also means for maintaining a constant level of water in the tail-pipe, and also numerous other valuable features ofl construction, combination and arrangement, substantially as will be hereafter described and then more particularly pointed out in the claims.

In the accompanying drawing illustrating my invention, Figure 1 is ay vertical section of my improved steam condensing apparatus. Fig.` 2 is a horizontal sectional plan onthe line 2, 2, of Fig. 1. Fig. 3 is a horizontal section on line 3, 3, of Fig. 1.A

Fig. 4 is an enlarged vertical sectional detail view. taken on the line 4, 4, ofFig. 3. a

Similar characters of reference designate corresponding parts throughout the different figures of the drawing.,

The condenser shell 1 is mounted on the tail-pipe Q, from whichthe water is removed by pump 3, said pump being a centrifugal pump and having suction pipe 18and discharge 19. Exhaust steam enters shell 1 at the inlet 4, while the injection water enters through the pipe 5. The water iiowing into the condenser through pipe 5 passes upwardly throughthe elbow 6 into the top of the shell 1, `where it spreads overla trag er of openwhich is provided with a num Aings 8 that convert the plate 7 into a skeleton or griddke construction giving ample opportunity forV the cooling water to drop down throughvthe shell at aV large number of different points in the surface of plate 7. Such a form of tray which allows the water to fall over the edges and through the openings may be greatly modified in the actual practice of the invention, and is not necessary to the successful working of the other features of the apparatus, since various forms of jets or spraying devices might be employed instead, but I have presented such tray here as a convenient and effective device for the purpose. It should also be noted that Vother horizontal trays or grids at different elevations below the top one may be utilized and in many instances will be found advisable for the purpose of breaking up the vertical iow of water, but this is a mere matter ofdetail, and is not essential to the invention, and changes in this respect may be made within wide limits without affecting the underlying principles on which I am working The exhaust steam which enters at the inlet 4 iiows around through the spirally-shaped condensing chamber 9 which, as indicated in Fig. 3, is formed by the outer cylindrical wall of shell l and the eccentric inner wall 20. These two walls together form a vertical chamber which gradually decreases in size and terminates at a point where the cross-section is the smallest, as shown at 10. This passage gives a cross-section which varies approximately in proportion to the quantity of steam to be condensed at each point, whichis the ideal condition to be aimed at. The water falls from the tray 7 through the spiral chamber 9 `and thoroughly condenses the steam, the water of condensation falling into the tail-pipe 2. Finally,.the air and lnon-condensable vapors are removed at the point 11 wherevthe connectionis made with the vacuum pump. This connection is more clearly shown in Fig. 4 where the connection is indicated as provided with an inwardly and downwardly projecting perforated pipe 12 which occupies a position in an inner chamber 21 `formed bywall 20 having an opening ,or openings 22 through which `the air and vapors pass from the small end of spiral chamber 9. Thus the air and non-condensable vapors can be dr-awn into pipe 12 byw the vacuum pump whose connection is at# is a novelty, being quite distinct from the The constant level usual small tail-pipe.

j of water which is kept in the tail-pipe 2 is made possible by means of a oat 13 on a Y' lever 14, and suitable connecting rods 15 Varranged in conjunction with a. balanced valve 17 which throttles the supply of steam toeither the steam turbine or the engine that drives the' centrifugal removal pump 3,

slightly, and the speed of the centrifugal for removing water fromkthe tail-pipe 2. When the water level rises in the tail-pipe 2, the regulating valve 17V will be opened pumpvthereby increased, and the result of Vthis will be that more water will be pumped and the Water level will again be reduced until the point of equilibrium is reached l which is thus maintained. Y The object of this is to keep a constant head of water on the pump, so that the pump operates showly as a water pump, the air freeing itself from the surface of the water in pipe 2 and rising in chamber 21 and entering perforated pipe v 12 and being removed by the vacuum pump. The pumpvin this way works under the -most eiicient conditions possible, whereas in the usualtype of centrifugal condenser, theV tailpipeis made small at or about the same diameterv as the suction of the pump, so that aflarge amount of air is carried down with the water thus giving poor material for thej pump to work with. 1 i

The operation isV asfollowsz--The steam to be condensed enters the spiral `chamber 9 f through the Ainlet 1 and courses around through the chamber until it reaches the smallest end 10 thereof. .During this passage; through the spiral chamber it is condensed by the water falling from the tray 7 i through theV openings 8. The spiral chamber enables the largest amount of steam and the largest amount of kwater to, be brought together. As the quantity of steam diminishes in traveling around through the chamber, which is itself constantly diminishing in siie, the amount of water supplied for the .condensation is likewise correspondingly decreasing, and this method ena-bles a most effectual condensation to take-place so that Vbythe time the steamreaches the smallest lend of the spiral chamber it will practically all have been condensed and there will be veryflittle butair at that point, The air land uncondensable vapors,'as I have pointed l out, pass' from the spiral chamber at the point 10 through the opening or openings '22 f'into the'v inner `chamber 21, and are drawn off by the dry vacuum connection. This air chamber 21 also receives the air which is released from the surface of the volume of water in the tail-pipe 2. The lower end of the air chamber 21 enters the water of the tail-pipe, as shown in Fig. 1, and enables a water seal to be formed at that point, and also prevents steam from entering the lower end of the chamber 21.

Many changes maybe made in the precise construction and combination of the various partsof my invention without exceeding the scope of the claims, and I reserve the liberty of modifying and changing the exact details of construction and combination as much as may be found necessary to adapt .the invention for practical use in a great .variety of locations.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, iS:--

1. In a jet condenser, the combination of a cylindrical shell,`an inner eccentric wall, said wall and shell together forming a spiral condensing chalnber, means for allowing air from the small end of the spiral chamber to enter the interior of the chamber formed within the inner eccentric wall, and means for removing the air from said chamber.

In a jet condenser, the combination of a cylindrical shell, an inner eccentric wall, said inner wall and shell together forming a spiral condensing chamber, means for allowing air to pass from the small end of the spiral chamber into the chamber formed by the inner wall, and a tail pipe receiving the lower end of the inner air chamber.

f3. In a jet condenser, the combination with a spiral chamber formed by an outer wall and an inner wall, the latter inclosing an interior air chamber' which receives air from the small end of the spiral chamber, and means for removing air from said interior chamber.

l. In a jet condenser, the combination of a spira-l chamber formed by an outer wall and an inner eccentric wall, the latter in- Yclosing an interior air chamber, and an apertured air removalpipe in said air chamber.

k5. In a jet condenser, the combination with a spiral chamber formed by an outer wall and an inner wall, the latter inclosing an interior air chamber, said chamber receiving air from the small end of the spiral chamber, and a tail pipe receiving the lower end of said air chamber so that -air may escape thereinto from the condensing water and the water of condensation.

6. In a jet condenser, the combination with a spiral chamber formed by an outer wall and an inner wall, the latter inclosing an interiorair chamber, of means for allowair to, ass into said interior air chamber fromv t e Lsmall end of the spiral chamber, and means comprising an air removal pipe in said interior air chamber for withdrawingthe air therefrom.

7. In a jet condenser, the combination with a spiral chamber formed by an outer wall and an inner wall, the latter inclosing an interior air chamber having openings'to permit the entrance of air thereinto from the small end of the spiral chamber, and air removal means within -said interior air chamber.

8.. In a jet condenser, the combination of a spiral chamber formed by an outer wall and an inner wall, the latter inclosing an interior air chamber Whose wall is perforated to receive air from the spiral chamber, and a perforated pipe supported in said air chamber and co-nnected with a dry vacuum pump.

9. In a jet condenser, the combination of a spiral condensing chamber formed by an outer wall and an inner wall, the latter inclosing an inner air chamber Whose wall is perforated to receive air from the spiral chamber. a perforated pipe supported in said inner chamber and connected With a dry vacuum pump, and a tail pipe receiving the lower end of the air chamber.

l0. In a jet condenser, the combination with a spiral chamber formed by an outer Wall and an inner wall, the latter inclosing an inner air chamber having' openings to permit the passage of the air thereinto from the spiral chamber, an air removal device supported in said air chamber and having openings to allow the air to pass thereinto, said device being connected with a dry vacuum pump, and a tail pipe receiving the lower end of the air chamber.

11. In a jet condenser, the combination with a spiralcondensing chamber formed by anouter cylindrical shell and an inner eccentric wall, the latter inclosing an interior air chamber having inlet openings for the air from the spiral chamber, a perforated removal pipe within the air chamber which is connected with a pump, and a tail pipe receiving the lower end of the air chamber.

12. In a jet condenser, the combination of a spiral condensing chamber formed by an outer Wall and an inner wall, the latter inclosing an interior air chamber, an air removal pipe in said chamber, and` a tail pipe of substantial size which receives the lower end of said chamber.

13. In a jet condenser, the combination with a spiral chamber formed by an outer wall and an inner wall, the latter inclosing,r an interior air chamber, which chamber is provided with inlet means for the air from the spiral chamber, and air removal means in said air chamber.

In testimony whereof I aiiiX my signature in the presence of two witnesses.-

FREDERICK RAY.

Witnesses:

ANNA M. GERRITY, ARTHUR P. BROCKLEBANK.

Copies of this patent may be obtained for :five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

